140451 has 4 divisors (see below), whose sum is σ = 187272. Its totient is φ = 93632.

The previous prime is 140449. The next prime is 140453. The reversal of 140451 is 154041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 154041 = 3 ⋅51347.

It is an interprime number because it is at equal distance from previous prime (140449) and next prime (140453).

It is a cyclic number.

It is not a de Polignac number, because 140451 - 2¹ = 140449 is a prime.

It is a D-number.

It is a self number, because there is not a number n which added to its sum of digits gives 140451.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 140451.

It is not an unprimeable number, because it can be changed into a prime (140453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23406 + ... + 23411.

It is an arithmetic number, because the mean of its divisors is an integer number (46818).

2¹⁴⁰⁴⁵¹ is an apocalyptic number.

140451 is a deficient number, since it is larger than the sum of its proper divisors (46821).

140451 is an equidigital number, since it uses as much as digits as its factorization.

140451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46820.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 140451 is about 374.7679281902. The cubic root of 140451 is about 51.9806387487.

Adding to 140451 its reverse (154041), we get a palindrome (294492).

The spelling of 140451 in words is "one hundred forty thousand, four hundred fifty-one".